BALL RUNNER BLOCK RESIST NRII KWD-020-FNS-C0-H-0

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth B.RUNN. BLOCK NRII KWD-020-FNS-C0-H-0 (R200189304) is a high-precision, corrosion-resistant ball runner block designed for use in a variety of demanding applications. This model boasts an impressive array of features that make it suitable for scenarios requiring high rigidity and maximum precision over extended periods. The block is constructed from Resist NRII, a corrosion-resistant steel compliant with DIN EN standards, ensuring durability and long-term performance even in harsh environments. The ball runner block comes with a size designation and follows the FNS format, which indicates a flange width, normal length, and standard height. Its construction is preload-free (preload class C), guaranteeing smooth motion without unnecessary tension within the system. With an accuracy class H designation, this runner block provides highly accurate movement suited for precise applications. Notably absent are the ball chain and initial lubrication; however, the product is designed to allow for long-term lubrication spanning several years. The optimized entry-zone geometry coupled with a high number of balls reduces variation in elastic deflection, enhancing travel accuracy by up to six times compared to other systems. This model can be used with all SNS ball guide rails available from Bosch Rexroth and comes in five common sizes to accommodate various requirements. It features lube fittings with metal threads on all sides for easy maintenance and lubrication management. Additionally, it offers excellent dynamic characteristics and supports the same high load ratings in all four main loading directions. The B.RUNN. BLOCK NRII KWD-020-FNS-C0-H-0 also includes a minimum quantity lubrication system with an integrated reservoir for oil lubrication, further ensuring optimal performance over time. Its design allows for easy interchangeability with guide rails of every accuracy level without compromising stability or precision—ideal for applications where modifications or upgrades might be necessary down the line.